Table of Contents
- 1 Is phthalocyanine organic?
- 2 How is phthalocyanine made?
- 3 What is Phthalo?
- 4 What is the difference between Phthalo blue and ultramarine blue?
- 5 How do you manufacture a CPC?
- 6 Which element is present in Monstral Fast blue B?
- 7 How are phthalocyanines related to other macrocyles?
- 8 What are the derivatives of the parent phthalocyanine?
Is phthalocyanine organic?
14.2 Chemistry of phthalocyanine dyes Phthalocyanine based colouring materials are highly useful in developing blue and green hues, which are the most stable organic colourants due to extensive structural resonance stabilisation.
How is phthalocyanine made?
Phthalocyanine blue is prepared by heating a mixture of phthalic anhydride, urea, and copper chloride. The product is first washed in dilute caustic soda and then in dilute hydrochloric acid.
What is CPC in pigment?
Copper phthalocyanine (CPC) blue is the copper (II) complex of tetra aza tetra benzoporphine (CPC) whereas phthalocyanine green is its chlorinated derivative. CPC Blue is an upstream product and is a raw material used for the manufacture of our Pigment Blue and Pigment Green products.
Is phthalocyanine toxic?
Among all of the compounds emerging upon ruby laser irradiation of copper phthalocyanine, HCN is of particular relevance due to its strong cellular toxicity. It has long been known as colorless, rapidly acting highly toxic gas (bp 26 °C)27,28.
What is Phthalo?
Phthalo pigments are a family of blue and green synthetic organic pigments based on variants of copper phthalocyanine, a deep blue compound produced by the reaction of phthalic anhydride, urea, copper and ammonia. Phthalo pigments are transparent, highly staining, and reliably lightfast.
What is the difference between Phthalo blue and ultramarine blue?
Side by side, ultramarine blue (left) is very different than phthalo blue (right). If we mapped each color on the color wheel, we’d see that ultramarine tilts toward the violet side of the wheel, while phthalo shifts toward the green side. Instead of traditional phthalo blue, there are several alternative pigments.
Why is it called phthalo blue?
Phthalo blue in its purest form. Phthalo blue (or Phthalocyanine Blue BN) is an organic blue developed by chemists under the trade name “monastral blue”. Pure copper phthaliocyanine in crystalline form is a deep blue with a strong bronze reflection, but when dry in pigment form is bright blue without any bronziness.
What is use of pigment blue?
Colorant. Due to its stability, phthalo blue is also used in inks, coatings, and many plastics. The pigment is insoluble and has no tendency to migrate in the material. It is a standard pigment used in printing ink and the packaging industry. The pigment is the highest volume pigment produced.
How do you manufacture a CPC?
Take above heated crude material into dumping vessel with spent sulphuric acid (mother liquor from Alpha Blue) and add water. Then start heating up to 95 deg C and maintain for 3 hrs.. Then filter in filter press, wash it , Neutralize it , dry & pulverize it and packed the final product as a CPC blue.
Which element is present in Monstral Fast blue B?
phthalocyanine compounds …its copper complex marketed as Monastral Fast Blue B and Monastral Fast Blue G, respectively.
Why is it called Phthalo blue?
What does Phthalo mean?
Phthalo – Phthalo is short for Phthalocyanine, which is a synthetic pigment of greenish-blue. Colors like Phthalo Blue and Phthalo Green are popular amongst artists for their intensity and tinting strength. The colors range from reddish to violet.
Phthalocyanines are structurally related to other tetrapyrrole macrocyles including porphyrins and porphyrazines. They feature four pyrrole -like subunits linked to form a 16 membered inner ring composed of alternating carbon and nitrogen atoms.
What are the derivatives of the parent phthalocyanine?
There are many derivatives of the parent phthalocyanine, where either carbon atoms of the macrocycle are exchanged for nitrogen atoms or the peripheral hydrogen atoms are substituted by functional groups like halogens, hydroxyl, amine, alkyl, aryl, thiol, alkoxy and nitrosyl groups.
Why was phthalocyanine reported as a blue compound?
These modifications allow for the tuning of the electrochemical properties of the molecule such as absorption and emission wavelengths and conductance. In 1907, an unidentified blue compound, now known to be phthalocyanine, was reported.
Which is the correct formula for phthalocyanine 4H2?
Phthalocyanine (H2Pc) is a large, aromatic, macrocyclic, organic compound with the formula (C8H4N2)4H2 and is of theoretical or specialized interest. It is composed of four isoindole units linked by nitrogen atoms.